Improvement in quartz-mills



2 Sheets-"Sheet 1.

8 H. BOWLE-S. Quartz-Mills.

Patented Nov. 17,1874.

2 Sheets--Sheet 2.

S. H. CUWLES. Quartz-Mills.

Patented No-v.17,1874.

No.l 56,985.

' INVENTOR ITNBSSES Attorneys QAM- WE GRAPHIC CO, PHOTO'LITILQSl'H PARKPLACE,N:Y.

UNITED STATES PATENT QFFIGE.

SAMUEL H. GOWLES, OF SACRAMENTO, CALIFORNIA.

IMPROVEMENT IN QUARTZ-MILLS.

Specification forming part of Letters Patent No. 156,985, dated November17, 1874; application filed September 23, 1874.

To all whom it may concern:

Be it known that I, SAMUEL H. OOWLEs, of Sacramento, in the county ofSacramento and in the State of California, have invented certain new anduseful Improvements in Quartz-Mills; and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, making a part of this specifi- 'cation.

wheel. Fig. 4 is a transverse section of the same; and Fig. 5 is adetached section of a part of the running-gear.

A represents a suitable platform, upon which is secured a circular bed,formed of iron plates B B. This bed is formed with a circular opening,0, in the center, and it is also formed with a flange or rim, 1), aroundits inner and outer circumference, so as to form, as it were, an annulartrough in which the crushing-wheel moves. From the platform A rise twoposts, 0 0, connected by a beam, E,-across the center and a suitabledistance above the bed. Through the center of the bed B B projects astationary post, D, and in the same is inserted a shaft, Gr, providedwith a central enlargement, a, through which is made a circular hole, m,as shown in Fig. 5. On the upper part of the shaft G is placed a hub, H,projecting from the center of a wheel, I, from the upper side of whichprojects a spindle, 01, having its bearing in the cross-beam E. Bothends of the shaft G are pointed, and rest in boxes 2 e, inserted in thepost D and hub H, as shown in Fig. 5. This shaft has also hearings bythe enlargement a, resting against plates f f on the upper end of thepost D, and

lower end of the hub H, as shown. 0n the additional weight.

upper side of the wheel I, at or near the circumference, are beveledcogs h, which gear with a beveled pinion, i, on a horizontal shaft, k,having a pulley or band wheel, J, on its outer end to be connected by abelt with the power employed for running the mill. 0n the under side ofthe wheel I, at or near the circumference, are also beveled cogs M,which gear with similar cogs k on the inner side at or near theperiphery of the crushing-wheel. This wheel is constructed hollow with acentral tubular hub, K, from which suitable braces 70 k extend tosupport the rim L. To the rim are secured heavy metal or stone plates M,by means of bolts, as shown. The sides of the wheel are planked withtwo-inch planks N, and the interior of the wheel is filled with concreteand tailings from the mill, or

any other suitable heavy substance to give it A shaft, m, is passedthrough the central aperture .00 in the enlargement a, and one end ofsaid shaft enters the hub K of the crushing-wheel. On the other end ofthe shaft m is hung a scraper, I, for the purpose of scraping the pulpon the sectional iron bed B to the center, where it drops down throughthe opening 0 into the receiver or amalgamator, such as are generallyused for amalgamation. The whole machinery is to be set upontrestle-work some seven feet high, to enable the amalgamator to workunderneath to an advantage. The plank platform A should run out aboutten feet around the sectional iron bed to enable the shovelers 0 standand spread the quartz evenly on the In practice, the wheel is intendedto crush either wet or dry by having a water pipe inserted into the edgeof the bed-plate and provided with a stop-cock to turn off or on astream of water as the wheel passes around. The wheel is to be madeheavy enough to crush the quartz to an impalpable powder the first timearound.

- The wheels most generally heretofore used have been made of huge stonebut they have never been able to get a stone heavy enough to crush therock very fast. In making the wheel, in the manner above described, ofwood, with iron or stone plates on the rim, and filling the interiorwith concrete, I am enabled to overcome this difliculty, and obtain awheel of any desired weight.

In order to move such a ponderous wheel, it becomes necessary to applythe power to or near the rim of the wheel, which I have done as shown at71/ whereby less power is required to drive it than when the power isapplied to the shaft or axle, as is generally done in mills of thisclass.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A crushing-wheel for quartz-mills, constructed as described, of ahub, K, braces 7c, rim L, with iron or stone plates M fastened thereto,plank sides N, and the interior of the wheel filled with concrete andtailings from the mill, or other suitable material, substan-' tially asand for the purposes herein set forth.

2. The combination of the driving-shaft 70 with pinion 1', wheel I withcogs h h on its upper and under edges, and the cogs 7& on thecrushing-wheel, whereby the power is applied to or near the rim of saidcrushing-wheel, sub stantially as herein set forth.

3. The vertical shaft G, pointed at both ends, and provided with centralperforated enlargement a, in combination with the post D, hub H, boxes 6e, and bearing-plates f f, substantially as and for the purposes hereinset forth.

4. The combination, with the crushing-wheel, of the horizontal shaft m,vertical shaft G, with perforated enlargement a, scraper P, and thesectional bed B, provided with central opening 0 and rims b b, allsubstantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this8th day of August, 1874.

SAMUEL H. OOYVLES.

Witnesses:

O. L. Evnnr, ROBERT STRONG.

